<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>权限管理</el-breadcrumb-item>
      <el-breadcrumb-item>角色列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 角色列表 -->
    <el-card>
      <!-- 添加角色 -->
      <el-button type="primary" @click="addDialogVisible = true">添加角色</el-button>
      <el-table :data="roleList" border stripe>
        <el-table-column type="expand">
          <template slot-scope="scope">
            <el-row v-for="(item1, i1) in scope.row.children" :class="['bdbottom', i1==0 ? 'bdtop':'', 'vcenter']" :key="item1.id">
              <el-col :span="5">
                <el-tag closable @close="removeRight(scope.row,item1.id)">{{item1.authName}}</el-tag>
                <i class="el-icon-caret-right"></i>
              </el-col>
              <el-col :span="19">
                <el-row v-for="(item2, i2) in item1.children" :key="item2.id" :class="[i2==0 ? '':'bdtop', 'vcenter']">
                  <el-col :span="6">
                    <el-tag type="success" @close="removeRight(scope.row,item2.id)" closable>{{item2.authName}}</el-tag>
                    <i class="el-icon-caret-right"></i>
                  </el-col>
                  <el-col :span="18">
                    <el-tag type="warning" v-for="(item3) in item2.children" :key="item3.id" closable @close="removeRight(scope.row,item3.id)">{{item3.authName}}</el-tag>
                  </el-col>
                </el-row>
              </el-col>
            </el-row>
          </template>
        </el-table-column>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="角色名称" prop="roleName"></el-table-column>
        <el-table-column label="角色描述" prop="roleDesc"></el-table-column>
        <el-table-column label="操作" width="320px">
          <template slot-scope="scope">
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)">编辑</el-button>
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeRole(scope.row.id)">删除</el-button>
            <el-button type="warning" icon="el-icon-setting" size="mini" @click="assignRightShow(scope.row)">分配权限</el-button>
          </template>
        </el-table-column>
      </el-table>
    </el-card>
     <!-- 添加角色 -->
    <el-dialog title="提示" :visible.sync="addDialogVisible" width="50%" @close="addFormClosed">
      <el-form label-width="70px" :model="addForm"  ref="addFormref" :rules="addrules">
        <!-- 用户输入框 -->
        <el-form-item label="角色名称" prop="roleName" label-width="80px">
          <el-input v-model="addForm.roleName"></el-input>
        </el-form-item>
        <el-form-item label="角色描述" prop="roleDesc" label-width="80px">
          <el-input v-model="addForm.roleDesc"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addRole">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 修改用户 -->
    <el-dialog title="提示" :visible.sync="editDialogVisible" width="50%" @close="editFormClosed">
      <el-form label-width="70px" :model="editForm" :rules="addrules" ref="editFormref">
        <!-- 用户输入框 -->
        <el-form-item label="角色名称" prop="roleName" label-width="80px">
          <el-input v-model="editForm.roleName"></el-input>
        </el-form-item>
        <el-form-item label="角色描述" prop="roleDesc" label-width="80px">
          <el-input v-model="editForm.roleDesc"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editRole">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 用户权限 -->
    <el-dialog title="分配权限" :visible.sync="rightDialogVisible" width="50%" @close="defKeys=[]">
      <el-tree :data="rihgtlist" :props="rightProps" show-checkbox node-key="id" default-expand-all :default-checked-keys="defKeys" ref="rightref"></el-tree>
      <span slot="footer">
        <el-button @click="rightDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="assignRight">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>
<script>
export default {
  data () {
    return {
      roleList: [],
      addForm: {
        roleName: '',
        roleDesc: ''
      },
      addDialogVisible: false,
      editForm: {},
      addrules: {
        roleName: [
          { required: true, message: '请输入角色名称', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 5 个字符', trigger: 'blur' }
        ],
        roleDesc: [
          { required: true, message: '请输入角色描述', trigger: 'blur' },
          { min: 4, max: 10, message: '长度在 1 到 10 个字符', trigger: 'blur' }
        ]
      },
      editDialogVisible: false,
      rightDialogVisible: false,
      rihgtlist: [],
      rightProps: {
        children: 'children',
        label: 'authName'
      },
      defKeys: [],
      roleId: ''
    }
  },
  created () {
    this.getRolelist()
  },
  methods: {
    async getRolelist () {
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) return this.$message.error('获取权限列表失败')
      this.roleList = res.data
    },
    addFormClosed () {
      this.$refs.addFormref.resetFields()
    },
    editFormClosed () {
      this.$refs.editFormref.resetFields()
    },
    addRole () {
      this.$refs.addFormref.validate(async val => {
        if (!val) return this.$message.error('输入格式不正确')
        const { data: res } = await this.$http.post('roles', this.addForm)
        if (res.meta.status !== 201) return this.$message.error('添加角色失败')
        this.$message.success('添加角色成功')
        this.addDialogVisible = false
        this.getRolelist()
      })
    },
    async showEditDialog (id) {
      const { data: res } = await this.$http.get('roles/' + id)
      if (res.meta.status !== 200) return this.$message.error('获取角色列表失败')
      this.editForm = res.data
      this.editDialogVisible = true
    },
    async editRole () {
      this.$refs.editFormref.validate(async val => {
        if (!val) return this.$message.error('输入格式不正确')
        const { data: res } = await this.$http.put('roles/' + this.editForm.roleId, {
          roleName: this.editForm.roleName,
          roleDesc: this.editForm.roleDesc
        })
        if (res.meta.status !== 200) return this.$message.error('修改角色失败')
        this.$message.success('修改角色成功')
        this.editDialogVisible = false
        this.getRolelist()
      })
    },
    async removeRole (id) {
      const confirmResult = await this.$confirm('此操作将永久删除该角色, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if (confirmResult !== 'confirm') return this.$message.info('已取消删除')
      const { data: res } = await this.$http.delete('roles/' + id)
      if (res.meta.status !== 200) return this.$message.error('删除角色失败')
      this.$message.success('删除用户成功')
      this.getRolelist()
    },
    async removeRight (role, rightId) {
      const confirmResult = await this.$confirm('此操作将永久删除该权限, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if (confirmResult !== 'confirm') return this.$message.info('已取消删除')
      const { data: res } = await this.$http.delete(
        `roles/${role.id}/rights/${rightId}`
      )
      if (res.meta.status !== 200) return this.$message.error('删除权限失败')
      this.$message.success('删除权限成功')
      role.children = res.data
    },
    async assignRightShow (role) {
      const { data: res } = await this.$http.get('rights/tree')
      if (res.meta.status !== 200) return this.$message.error('获取权限列表失败')
      this.rihgtlist = res.data
      this.getLeafKeys(role, this.defKeys)
      this.roleId = role.id
      this.rightDialogVisible = true
    },
    getLeafKeys (node, arr) {
      if (!node.children) {
        return arr.push(node.id)
      }
      node.children.forEach(item => {
        this.getLeafKeys(item, arr)
      })
    },
    async assignRight () {
      const keys = [
        ...this.$refs.rightref.getCheckedKeys(),
        ...this.$refs.rightref.getHalfCheckedKeys()
      ]
      const idStr = keys.join(',')
      const { data: res } = await this.$http.post(
        `roles/${this.roleId}/rights`,
        { rids: idStr }
      )
      if (res.meta.status !== 200) return this.$message.error('分配权限失败')
      this.$message.success('分配权限成功')
      this.getRolelist()
      this.rightDialogVisible = false
    }
  }
}
</script>
<style lang="less" scoped>
.el-tag {
  margin: 7px;
}
.bdtop {
  border-top: 1px solid #eee;
}
.bdbottom {
  border-bottom: 1px solid #eee;
}
.vcenter {
  display: flex;
  align-items: center;
}
</style>
